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Poster Presentation at the Conference

Connected & Autonomous Vehicle (CAV) Impacts

Session: Meet the Author - Poster Session PS-5

1373854 - Exploring the Performance of a Shared Autonomous Service

Friday, June 16, 2023
1:30 PM - 3:00 PM CST
Room: Governor's Grand Ballroom
Salon ABC
TRACK: Poster Presentation
Autonomous vehicles are suggested to promote mobility, accessibility, and equity, mainly when provided as public transit. However, it is still being determined how these systems can successfully operate and perform on the road. Due to limited ridership data, past studies have often simulated the on-demand operation of shared autonomous vehicles (SAVs). Since the simulation results of SAV systems are based on the predicted and not actual ridesharing rates; therefore, the performance of such services can be different in real-time data. This study aims to fill this gap by evaluating the performance metrics of an SAV pilot demonstration in Arlington, Texas, using trip-level data collected between March 2021-2022. Service performance is evaluated by exploring ridership, demand characteristics, service supply, and efficiency. Results indicated that daily ridership increased gradually over time, and the peak demand was shaped based on temporal and activity-based patterns. Results reveal that the AV routing for shared rides could be better or more efficient due to pre-planned routes for safe AV operations. In addition, most service areas had a higher autonomy performance, while the service had a lower autonomy performance at certain intersections. More similar studies are needed to improve our understanding of the most appropriate performance metrics for future SAVs.

Learning Objectives:

Attendees can expect to learn the following from this session:
  • Evaluate service performance of a shared autonomous vehicle (SAV) demonstration.
  • Identify demand and supply trends of SAVs in the early phases of public demonstrating.
  • Identify SAV service efficiency on public roads.